/Engine/Plugins/Media/MediaIOFramework/Source/MediaIOEditor/Public/Widgets/SMediaPermutationsSelector.h
A delegate called to add additional widgets to the left of the apply button.
typedef TBaseDelegate_OneParam< void, [TArray](API\Runtime\Core\Containers\TArray)< [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [SWidget](API\Runtime\SlateCore\Widgets\SWidget) > > & > FOnGetExtensions